Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 213,256	$ 169,148
Income (loss) from operations	601	3,693
Interest expense	(13,801)	(11,996)
Other	(3,428)	313
Loss before (provision) benefit for income taxes and share of net income from joint venture	(16,628)	(7,990)
Total assets	1,580,993		$ 1,501,570
Mobile Solutions
Segment Reporting Information [Line Items]
Total assets	392,100		356,387
Power Solutions
Segment Reporting Information [Line Items]
Total assets	311,771		297,947
Life Sciences
Segment Reporting Information [Line Items]
Total assets	824,891		802,770
Corporate and Consolidations
Segment Reporting Information [Line Items]
Total assets	52,231		$ 44,466
Operating Segments | Mobile Solutions
Segment Reporting Information [Line Items]
Net sales	78,075	89,794
Income (loss) from operations	4,107	9,785
Operating Segments | Power Solutions
Segment Reporting Information [Line Items]
Net sales	49,657	48,682
Income (loss) from operations	3,824	5,233
Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Net sales	86,008	31,200
Income (loss) from operations	3,846	4,204
Corporate and Eliminations | Corporate and Consolidations
Segment Reporting Information [Line Items]
Net sales	(484)	(528)
Income (loss) from operations	$ (11,176)	$ (15,529)